3.9
(11)
45
riders
6
rides
Mountain biking around Tref Alaw offers diverse terrain across the Isle of Anglesey. The region features a mix of coastal paths, dense forests, and tranquil reservoir areas. Riders can explore routes that traverse sandy beaches, woodland trails, and open countryside. The landscape provides varied elevation changes suitable for different skill levels.
Last updated: May 11, 2026
5.0
(4)
22
riders
43.0km
02:38
130m
130m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
8
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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3
riders
55.5km
03:16
560m
570m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3.0
(2)
3
riders
18.5km
01:10
250m
250m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
2
riders
28.3km
01:35
220m
220m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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We visited for the Parkrun, which was cancelled whilst a walkway is fixed (some more weeks, I would expect). You can still access the lake along the disused railway line for part of the way - but not a good surface for running. Then there is a path around the lake with views across the lake and stretches through the woods, lovely, if rather muddy in places following wet weather. In total about 9 km around. Hope to do this again in the Spring with the promise of wild daffodils and perhaps a red squirrel.
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Quiet paths easy cycling crosses deserted railway line still present, which there trying to reopen
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Cefni Forest on Anglesey surrounds Llyn Cefni reservoir near Llangefni. It offers peaceful woodland trails for walking and cycling, linking to the Lon Las Cefni route. The forest is a sanctuary for red squirrels and diverse birdlife, making it a perfect spot for quiet nature exploration and wildlife watching.
1
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there is a small free car park with toilets. and a hut selling ice creams
2
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nice little cafe some nice cakes and coffee summer opening only
0
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Very flat, easy surface, great little loop
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There are several mountain bike trails around Tref Alaw, with komoot featuring 7 distinct routes. These routes offer a mix of easy and moderate options, catering to various skill levels.
Yes, Tref Alaw offers several easy and family-friendly mountain bike trails. For a gentle ride through woodland and alongside a reservoir, consider the Cefni Forest – Llyn Cefni Reservoir and Dam loop from Isle of Anglesey. Another accessible option is the Lligwy Beach Café & Shop – Lligwy Beach loop from Brynrefail, which provides a pleasant ride near the coast.
The mountain bike trails around Tref Alaw offer diverse terrain across the Isle of Anglesey. You can expect a mix of coastal paths, dense forests, and tranquil reservoir areas. Routes traverse sandy beaches, woodland trails, and open countryside, with varied elevation changes suitable for different skill levels.
Yes, many of the mountain bike routes around Tref Alaw are designed as loops. For example, the Llanddwyn Beach – Newborough Forest Trail loop from Anglesey combines forest riding with coastal views, while the Llynnon Mill – Cemlyn Bay Nature Reserve loop from Llannerch-y-Medd takes you through coastal landscapes and past historic sites.
The mountain bike trails in Tref Alaw are highly regarded by the komoot community, with an average rating of 3.9 stars from over 10 reviews. Riders often praise the varied terrain, from coastal paths to forest trails, and the options available for different ability levels.
While Tref Alaw primarily features easy to moderate trails, some routes offer a longer distance for those seeking more time in the saddle. The Llynnon Mill – Cemlyn Bay Nature Reserve loop from Llannerch-y-Medd is a moderate 34.1-mile (54.9 km) trail, and the Llanddwyn Beach – Newborough Forest Trail loop from Anglesey is a moderate 26.7-mile (43.0 km) route, both providing a good challenge.
Many trails pass by notable attractions. You can ride past the scenic Llyn Cefni Reservoir and Dam, explore the historic Porth Wen Brickworks, or enjoy views from Mynydd Bodafon Summit. The Cemlyn Bay Nature Reserve is also a beautiful spot to visit.
Absolutely. Tref Alaw is a great place for beginners, with 5 out of 7 featured routes classified as easy. The Cefni Forest – Llyn Cefni Reservoir and Dam loop from Isle of Anglesey is an excellent choice for those new to mountain biking, offering a gentle and scenic ride.
The duration of mountain bike trails in Tref Alaw varies depending on the route and your pace. Shorter, easy trails like the Cefni Forest – Llyn Cefni Reservoir and Dam loop from Isle of Anglesey can be completed in about 1 hour. Longer, moderate routes such as the Llynnon Mill – Cemlyn Bay Nature Reserve loop from Llannerch-y-Medd might take around 3 hours 14 minutes.
Yes, Tref Alaw's location on Anglesey means many routes feature stunning coastal scenery. The Llanddwyn Beach – Newborough Forest Trail loop from Anglesey is a prime example, combining forest riding with beautiful coastal vistas near Llanddwyn Beach. The Lligwy Beach Café & Shop – Lligwy Beach loop from Brynrefail also offers a pleasant ride near Lligwy Beach.
While popular routes can see more visitors, the diverse network of trails around Tref Alaw means you can often find quieter paths, especially outside peak times. Exploring routes that venture further inland or away from the most well-known coastal spots may offer a more secluded experience. Consider exploring the Bethel Village – Cefni River Railway Viaduct loop from Rhosneigr for a different perspective.


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